However, focusing on oncogenic polyomaviruses, it has been recently published that T-antigens of MCPyV promote the expression of cellular microRNAs (i.e. miR-375, miR-30a-3p, and miR-30a-5p) in MCC cell lines, which in turn target the expression of autophagy-related genes such us ATG7, BECLIN 1, and p62 (Kumar et al., 2019). The gene discussed is ATG7; the disease is Merkel cell skin cancer.